Proton exchange membrane fuel cell (PEMFC) utilizes polymer electrolyte membrane, e.g., Nafion™, which is a perfluorosulfonic acid (PFSA) membrane with many disadvantages such as expensive, low mechanical strength, low chemical stability at high temperatures. Meanwhile, graphene oxide membrane (GOM) is an excellent proton conductor at room temperature under humidified conditions. However, graphene oxide membrane fuel cells (GOMFCs) exhibit low maximum power density compared to Nafion due to fuel gas crossover, membrane degradation and loss of surface functionalities. In this study, bilayer membrane consisting of GOM and hydrogen permeable metal thin film was investigated as electrolyte membrane for hydrogen membrane fuel cell (HMFC). In this fuel cell, the graphene oxide-hydrogen membrane (GOHM) simultaneously plays two roles, an anode catalyst and an electrolyte. A hydrogen permeable metal thin film of about 40 nm was deposited by DC magnetron sputtering at a suitable pressure and deposition time on a 12 µm-thick GOM using a Pd or Ni₆₄Zr₃₆ target to complete the bilayer GOHM electrolyte. The fuel cell performance of the GOHMFC using with Pt-free anode was compared with the GOHMFC with conventional Pt/C electrodes and conventional PEMFC.

中文翻译：

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氧化石墨烯氢膜燃料电池

质子交换膜燃料电池（PEMFC）利用聚合物电解质膜，例如Nafion TM，其是全氟磺酸（PFSA）膜，具有许多缺点，例如昂贵，机械强度低，高温下化学稳定性低。同时，氧化石墨烯膜（GOM）是室温下在潮湿条件下的优良质子导体。然而，由于燃料气体的穿越，膜的降解和表面功能的丧失，与Nafion相比，氧化石墨烯膜燃料电池（GOMFC）显示出较低的最大功率密度。在这项研究中，研究了由GOM和氢可渗透金属薄膜组成的双层膜作为氢膜燃料电池（HMFC）的电解质膜。在该燃料电池中，氧化石墨烯-氢膜（GOHM）同时扮演两个角色，阳极催化剂和电解质。通过直流磁控溅射在适当的压力和沉积时间下，使用Pd或Ni在厚度为12 µm的GOM上沉积约40 nm的氢可渗透金属薄膜₆₄ Zr ₃₆靶可完成双层GOHM电解质。将使用无Pt阳极的GOHMFC的燃料电池性能与使用常规Pt / C电极和常规PEMFC的GOHMFC进行了比较。